Fix spelling mistakes using codespell

This commit corrects various spelling mistakes throughout the
repository. The corrections were made automatically using `codespell`[1]
tool.

[1]: https://github.com/codespell-project/codespell

Change-Id: Ib3d3a9eae5d449323c49dec3794a74c8a6333997
Signed-off-by: Manojkiran Eda <manojkiran.eda@gmail.com>
diff --git a/bmc_health_config_json.md b/bmc_health_config_json.md
index eb0bd43..028aeda 100644
--- a/bmc_health_config_json.md
+++ b/bmc_health_config_json.md
@@ -29,8 +29,8 @@
 - `Storage_RW`
   - This indicates the amount of available storage space
 - `Storage_`\<xxx>
-  - This indicates the amount of availble space for type depicted by `<xxx>` for
-    the location backed by path parameter.
+  - This indicates the amount of available space for type depicted by `<xxx>`
+    for the location backed by path parameter.
 
 The metric types may have the following attributes:
 
diff --git a/health_metric_config.cpp b/health_metric_config.cpp
index 9370ada..c3b80ba 100644
--- a/health_metric_config.cpp
+++ b/health_metric_config.cpp
@@ -280,7 +280,7 @@
     return details::reverse_map_search(config::validTypes, t);
 }
 
-// to_string specializaiton for SubType.
+// to_string specialization for SubType.
 auto to_string(SubType t) -> std::string
 {
     return details::reverse_map_search(config::validSubTypes, t);